Levente Gyöngyösi (born 1975, Cluj-Napoca, Romania) is a Romanian-born Hungarian composer. He moved to Hungary in 1989, when he was 14.Kontrapunkt bio Works, editions and recordings Opera A gólyakal
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d5c1f641a7ee5ff6b4415327bbbe447ecc5176a6db0ecab69a634e4e278740. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7054d1e0-8e38-466e-8d12-1b240ecca276.json and https://artists.proofprofile.net/proofs/artist/7054d1e0-8e38-466e-8d12-1b240ecca276.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd7411bcd35aa493779e6e9e0c89223b7ade1853caf2767a81663c66bcfa098. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAENV2110183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b143f4b2559e1d7d86b1fc9f5513a3d7a6fbcd530d76bd7d1b176a9b3668d4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAENV2110214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d57fda5b93e8a68ea15ca1f2c1c34ad0d6cae2ae94d3a9e42e1391b27919ebe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAENV2110215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa62b66b50aef1d2bf9dc7d61c3b5d1eedf50b59bf2d4eebac6104ec8f3b72f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAENV2110216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577e5abf275e8731f2ca1339ed90dc1ecc974602f0d53d04a73ed499153d3348. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAENV2110218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800c659c7625987e602e15703460772fca2bafd7355536bcf0f35996818d601f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAENV2110219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf71c8e3e0550a45bf8d2dc6e9e3307904c58b0689e336f415071e01f191ce5b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP1940865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd759464c216e6200d50cd733d3965afa36c2ea530159c8c10e608abcb7737606. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP1940866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b5d2c3fb41bae08949cd02b849b859c59a056fc96b1ff0530c4e6105ed81dc. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP1940867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce62c2c5f47e8e6039ef8c3bfcd623c1b17504b02a16c64e45d61c081669f90. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP1940868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12192cea3d4bae045adea82d485347376b11f24ed8d994160db3a61d5d81879b. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP1940859.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3446b2082d24a50386057d1ea3e6e61d657f5793223838e393eb2f62699ea8cc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACWV2073208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab6eed2fb96f8b2a800b68599aa1095e5bd6cbc93759671a444c969a517f430. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACWV2073210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3353ec16d39e35ca3ce17808cae89dacea7d21b678e706de603273900eb1de48. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1913532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3b987ebaa7e8cbb67a3296b90beecd473509f991ba37af03101d5d090ebfa9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1913534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d92ece673db6a71b4a7987cf88913b5290901679771c0c1197a807df912997e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1913536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae293d4762f0a192daeeb5fae9d78312366acc88a1abe6a74e526744177d36a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1913537.
Szörényi Levente - Bródy János: István, a király
Gyöngyösi Levente - Balla Zsófia: A gólyakalifa (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b039258098a57fe800008a7e57088f71fea8a93976c6cfbe173f755b4cb284. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUB281900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83272487b8838700ab121493f07d2f6860b52e634c352771ed88e66e716e9fe6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUB281900141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2752b83df5fc2ac813c911655148177de49bff386a47915525d018afcebfb9c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUB281900152.
Gyöngyösi / Desimpelaere / Groslot / Watté: Piccolo Concerti